Research

Hormonal

Combining GLP-1 receptor agonists (GLP-1RAs) with lifestyle modifications results in significantly greater weight loss and improved cardiometabolic biomarkers compared to lifestyle modifications alone in adults with overweight or obesity.

If you have overweight or obesity, combining a GLP-1 receptor agonist (like semaglutide or liraglutide) with lifestyle changes (calorie restriction and regular exercise) is significantly more effective for weight loss and improving heart health markers than lifestyle changes alone. To minimize muscle loss, ensure your lifestyle intervention includes resistance training. Consult a doctor to determine if GLP-1RAs are appropriate for you.

GoodSupportsHIGH confidence
Lifestyle modification combined with GLP-1RAs results in a significant mean weight loss of 7.13 kg compared with control groups (MD: −7.13 kg, 95% CI: −9.02, −5.24, P < 0.001). Significant improvements were also observed in other body composition parameters and cardiometabolic biomarkers, including waist circumference (MD: −5.74 cm, 95% CI: −7.17, −4.31, P < 0.001), lean mass (MD: −1.29 kg, 95% CI: −2.17, −0.41, P = 0.004), fat mass (MD: −2.93 kg, 95% CI: −4.70, −1.12, P = 0.001), systolic blood pressure (MD: −3.99 mmHg, 95% CI: −5.66, −2.33, P < 0.001), diastolic blood pressure (MD: −1.11 mmHg, 95% CI: −1.71, −0.42, P = 0.002), glycated hemoglobin (MD: −0.31%, 95% CI: −0.47, −0.15, P < 0.001), fasting blood glucose (MD: −6.51 mg/dL, 95% CI: −7.31, −4.71, P = 0.004), total cholesterol (MD: −5.85 mg/dL, 95% CI: −9.78, −1.91, P = 0.004), triglycerides (MD: −13.44 mg/dL, 95% CI: −20.38, −6.50, P < 0.001), low-density lipoprotein cholesterol (MD: −4.78 mg/dL, 95% CI: −7.35, −2.22, P = 0.003)
Jiaheng Chu et al. · EClinicalMedicine · 2025

Why this rating

Based on a meta-analysis of 33 RCTs with 12,028 participants, though GRADE certainty varies from low to high.

Source

Efficacy of lifestyle modification combined with GLP-1 receptor agonists on body weight and cardiometabolic biomarkers in individuals with overweight or obesity: a systematic review and meta-analysis

Jiaheng Chu et al. · EClinicalMedicine · 2025

DOI 10.1016/j.eclinm.2025.103464

Meta-analysis · 33 studiesCited 15×
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DOI resolved against Crossref · corpus check 2026-06-10

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